panic: m_copym0: m == NULL and not COPYALL Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 94465 78671 0 0x2 0 1 syz-executor.0 * 48356 24851 0 0x12 0 0 sshd db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff8243ef0c) at panic+0x15c sys/kern/subr_prf.c:207 m_copym(fffffd806495c100,204,580,2) at m_copym+0x5b9 sys/kern/uipc_mbuf.c:664 tcp_output(ffff800000ada760) at tcp_output+0x15ba sys/netinet/tcp_output.c:673 tcp_usrreq(fffffd806eaf0c88,9,fffffd806495c000,0,0,ffff800020e4dc40) at tcp_usrreq+0xa55 sosend(fffffd806eaf0c88,0,ffff800020e24018,0,0,80) at sosend+0x671 sys/kern/uipc_socket.c:555 dofilewritev(ffff800020e4dc40,4,ffff800020e24018,0,ffff800020e24100) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020e4dc40,ffff800020e240b0,ffff800020e24100) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020e24180) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e24180) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc4a00, count: 5 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic m_copym0: m == NULL and not COPYALL ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff8243ef0c) at panic+0x15c sys/kern/subr_prf.c:207 m_copym(fffffd806495c100,204,580,2) at m_copym+0x5b9 sys/kern/uipc_mbuf.c:664 tcp_output(ffff800000ada760) at tcp_output+0x15ba sys/netinet/tcp_output.c:673 tcp_usrreq(fffffd806eaf0c88,9,fffffd806495c000,0,0,ffff800020e4dc40) at tcp_usrreq+0xa55 sosend(fffffd806eaf0c88,0,ffff800020e24018,0,0,80) at sosend+0x671 sys/kern/uipc_socket.c:555 dofilewritev(ffff800020e4dc40,4,ffff800020e24018,0,ffff800020e24100) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020e4dc40,ffff800020e240b0,ffff800020e24100) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020e24180) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e24180) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc4a00, count: -10 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff800020e23ae0 rbx 0xffff800020e23b90 rdx 0x8b rcx 0x2 rax 0x1 r8 0xffffffff81e9c95f kprintf+0x16f r9 0x1 r10 0x2 r11 0x804cf58b98ea3dd3 r12 0x3000000008 r13 0xffff800020e23af0 r14 0x100 r15 0x1 rip 0xffffffff815638a8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800020e23ad0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (sshd) pid=48356 stat=onproc flags process=12 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020e4d4f0,0xffff800020e4e130 process=0xffff8000ffffe018 user=0xffff800020e1f000, vmspace=0xfffffd806e904738 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 52671 314740 97197 0 3 0x82 nanosleep syz-executor.1 420 130774 0 0 3 0x14280 nfsidl nfsio 35672 60944 0 0 3 0x14280 nfsidl nfsio 52097 40053 0 0 3 0x14280 nfsidl nfsio 90043 270288 0 0 3 0x14280 nfsidl nfsio 34088 332509 0 0 3 0x14280 nfsidl nfsio 50103 503778 0 0 3 0x14280 nfsidl nfsio 47715 11026 0 0 3 0x14280 nfsidl nfsio 45759 235491 0 0 3 0x14280 nfsidl nfsio 26953 128665 0 0 3 0x14280 nfsidl nfsio 66677 348419 0 0 3 0x14280 nfsidl nfsio 66108 493072 0 0 3 0x14280 nfsidl nfsio 85993 482554 0 0 3 0x14280 nfsidl nfsio 5119 78212 0 0 3 0x14280 nfsidl nfsio 90979 27865 0 0 3 0x14280 nfsidl nfsio 75365 107270 0 0 3 0x14280 nfsidl nfsio 52882 155086 0 0 3 0x14280 nfsidl nfsio 71264 351235 0 0 3 0x14280 nfsidl nfsio 13495 49617 0 0 3 0x14280 nfsidl nfsio 53386 487266 0 0 3 0x14280 nfsidl nfsio 92472 267442 0 0 3 0x14280 nfsidl nfsio 26745 4919 0 0 3 0x14200 bored sosplice 78671 94465 97197 0 7 0x2 syz-executor.0 97197 13881 17094 0 3 0x82 thrsleep syz-fuzzer 97197 342659 17094 0 3 0x4000082 nanosleep syz-fuzzer 97197 158904 17094 0 3 0x4000082 thrsleep syz-fuzzer 97197 303031 17094 0 3 0x4000082 thrsleep syz-fuzzer 97197 483135 17094 0 3 0x4000082 kqread syz-fuzzer 97197 191197 17094 0 3 0x4000082 thrsleep syz-fuzzer 97197 378103 17094 0 3 0x4000082 thrsleep syz-fuzzer 97197 385836 17094 0 3 0x4000082 thrsleep syz-fuzzer 97197 93463 17094 0 3 0x4000082 nanosleep syz-fuzzer 97197 196058 17094 0 3 0x4000082 thrsleep syz-fuzzer 17094 364971 24851 0 3 0x10008a pause ksh *24851 48356 82678 0 7 0x12 sshd 11890 22610 1 0 3 0x100083 ttyin getty 82678 245698 1 0 3 0x80 select sshd 85647 133508 88105 74 3 0x100092 bpf pflogd 88105 291910 1 0 3 0x80 netio pflogd 29546 505695 79581 73 3 0x100090 kqread syslogd 79581 227175 1 0 3 0x100082 netio syslogd 10592 204122 1 77 3 0x100090 poll dhclient 55226 385150 1 0 3 0x80 poll dhclient 25719 152824 0 0 3 0x14200 bored smr 23350 33483 0 0 3 0x14200 pgzero zerothread 73369 401820 0 0 3 0x14200 aiodoned aiodoned 60305 225759 0 0 3 0x14200 syncer update 61322 353517 0 0 3 0x14200 cleaner cleaner 18110 82704 0 0 3 0x14200 reaper reaper 42433 503767 0 0 3 0x14200 pgdaemon pagedaemon 60611 279956 0 0 3 0x14200 bored crynlk 93701 89607 0 0 3 0x14200 bored crypto 8188 518089 0 0 3 0x40014200 acpi0 acpi0 3631 454495 0 0 3 0x40014200 idle1 13490 300122 0 0 3 0x14200 bored softnet 30491 61595 0 0 3 0x14200 bored systqmp 94117 120415 0 0 3 0x14200 bored systq 95402 37759 0 0 3 0x40014200 bored softclock 44172 98945 0 0 3 0x40014200 idle0 1 211646 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 78671 (syz-executor.0) thread 0xffff800020ddc4e8 (94465) Process 24851 (sshd) thread 0xffff800020e4dc40 (48356) ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9540 6925K 7312K 78643K 12380 0 pcb 13 8K 8K 78643K 58 0 rtable 106 3K 4K 78643K 311 0 ifaddr 65 14K 14K 78643K 118 0 counters 43 33K 34K 78643K 55 0 ioctlops 0 0K 4K 78643K 1529 0 iov 0 0K 16K 78643K 28 0 mount 1 1K 1K 78643K 1 0 vnodes 1222 77K 77K 78643K 1789 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 16 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 50 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 4 9K 25K 78643K 556 0 sigio 0 0K 0K 78643K 2 0 proc 61 63K 95K 78643K 541 0 subproc 32 2K 2K 78643K 51 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 29 0 in_multi 67 3K 3K 78643K 146 0 ether_multi 1 0K 0K 78643K 11 0 mrt 0 0K 0K 78643K 5 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 49 228K 228K 78643K 49 0 exec 0 0K 1K 78643K 250 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 126 39K 40K 78643K 2661 0 UVM aobj 35 4K 4K 78643K 36 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 34 0 NDP 9 0K 0K 78643K 29 0 temp 100 3861K 3940K 78643K 6125 0 kqueue 3 4K 8K 78643K 11 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 8 0 2 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 49 0 47 1 0 1 1 0 8 0 rtentry 112 80 0 37 2 0 2 2 0 8 0 unpcb 120 283 0 273 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 534 0 534 2 2 0 2 0 8 0 tcpcb 544 96 0 92 1 0 1 1 0 8 0 inpcb 296 326 0 317 3 1 2 2 0 8 1 rttmr 72 1 0 1 1 1 0 1 0 8 0 nd6 48 22 0 16 1 0 1 1 0 8 0 ppxss 1128 2 0 2 1 1 0 1 0 8 0 pffrag 232 2 0 0 1 0 1 1 0 482 0 pffrnode 88 2 0 0 1 0 1 1 0 8 0 pffrent 40 4 0 2 1 0 1 1 0 8 0 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfrktable 1344 6 0 6 1 1 0 1 0 8 0 pfstitem 24 43 0 5 1 0 1 1 0 8 0 pfstkey 112 43 0 5 2 0 2 2 0 8 0 pfstate 328 43 0 5 4 0 4 4 0 8 0 pfrule 1360 25 0 19 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 313 0 118 14 1 13 13 0 8 0 art_table 32 314 0 118 2 0 2 2 0 8 0 art_node 16 79 0 39 1 0 1 1 0 8 0 sysvmsgpl 40 17 0 11 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 48 0 38 1 0 1 1 0 8 0 shmpl 112 33 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2258 0 856 89 0 89 89 0 8 0 ffsino 272 2258 0 856 96 2 94 95 0 8 0 nchpl 144 3443 0 1846 60 0 60 60 0 8 0 uvmvnodes 72 2720 0 0 50 0 50 50 0 8 0 vnodes 208 2720 0 0 144 0 144 144 0 8 0 namei 1024 9335 0 9334 2 1 1 1 0 8 0 percpumem 16 38 0 6 1 0 1 1 0 8 0 vcpupl 1984 2 0 0 1 0 1 1 0 8 0 vmpool 560 3 0 1 1 0 1 1 0 8 0 pfiaddrpl 120 2 0 2 1 1 0 1 0 8 0 scsiplug 64 1 0 1 1 1 0 1 0 8 0 scxspl 192 9044 0 9044 11 7 4 7 0 8 4 plimitpl 152 32 0 24 1 0 1 1 0 8 0 sigapl 424 789 0 738 6 0 6 6 0 8 0 futexpl 56 6937 0 6937 1 0 1 1 0 8 1 knotepl 112 82 0 63 1 0 1 1 0 8 0 kqueuepl 144 34 0 31 1 0 1 1 0 8 0 pipepl 304 127 0 117 2 0 2 2 0 8 1 fdescpl 496 753 0 738 3 0 3 3 0 8 0 filepl 152 4117 0 4017 7 1 6 6 0 8 2 lockfpl 104 93 0 92 1 0 1 1 0 8 0 lockfspl 48 35 0 34 1 0 1 1 0 8 0 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 21 0 10 1 0 1 1 0 8 0 ucredpl 96 261 0 251 1 0 1 1 0 8 0 zombiepl 144 738 0 737 2 1 1 1 0 8 0 processpl 992 789 0 737 8 1 7 7 0 8 0 procpl 624 1853 0 1792 6 0 6 6 0 8 1 sosppl 128 3 0 3 1 1 0 1 0 8 0 sockpl 400 658 0 639 6 2 4 4 0 8 2 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 8 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 8 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 292 0 0 36 0 36 36 0 8 0 mtagpl 96 174 0 0 5 0 5 5 0 8 0 mbufpl 256 453 0 0 28 0 28 28 0 8 0 bufpl 280 4271 0 133 296 0 296 296 0 8 0 anonpl 16 81377 0 65705 68 1 67 67 0 124 0 amapchunkpl 152 3850 0 3697 9 1 8 9 0 158 0 amappl16 192 3257 0 2375 46 0 46 46 0 8 1 amappl15 184 1 0 1 1 1 0 1 0 8 0 amappl14 176 25 0 20 1 0 1 1 0 8 0 amappl13 168 215 0 211 1 0 1 1 0 8 0 amappl12 160 8 0 7 1 0 1 1 0 8 0 amappl11 152 57 0 42 1 0 1 1 0 8 0 amappl10 144 292 0 286 1 0 1 1 0 8 0 amappl9 136 380 0 379 1 0 1 1 0 8 0 amappl8 128 383 0 352 2 0 2 2 0 8 0 amappl7 120 396 0 382 1 0 1 1 0 8 0 amappl6 112 20 0 19 1 0 1 1 0 8 0 amappl5 104 668 0 652 1 0 1 1 0 8 0 amappl4 96 669 0 639 1 0 1 1 0 8 0 amappl3 88 127 0 122 1 0 1 1 0 8 0 amappl2 80 5022 0 4960 2 0 2 2 0 8 0 amappl1 72 31043 0 30618 23 13 10 18 0 8 0 amappl 80 2104 0 2058 2 0 2 2 0 84 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 64 35 0 1 1 0 1 1 0 8 0 uaddrrnd 24 756 0 739 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 756 0 739 1 0 1 1 0 8 0 vmmpekpl 168 9259 0 9223 2 0 2 2 0 8 0 vmmpepl 168 102853 0 100907 141 17 124 124 0 357 33 vmsppl 368 755 0 739 2 0 2 2 0 8 0 pdppl 4096 1519 0 1480 7 1 6 6 0 8 0 pvpl 32 263272 0 244420 167 2 165 166 0 265 5 pmappl 232 755 0 739 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 298 0 10 9 0 9 9 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff8243ef0c) at panic+0x15c sys/kern/subr_prf.c:207 m_copym(fffffd806495c100,204,580,2) at m_copym+0x5b9 sys/kern/uipc_mbuf.c:664 tcp_output(ffff800000ada760) at tcp_output+0x15ba sys/netinet/tcp_output.c:673 tcp_usrreq(fffffd806eaf0c88,9,fffffd806495c000,0,0,ffff800020e4dc40) at tcp_usrreq+0xa55 sosend(fffffd806eaf0c88,0,ffff800020e24018,0,0,80) at sosend+0x671 sys/kern/uipc_socket.c:555 dofilewritev(ffff800020e4dc40,4,ffff800020e24018,0,ffff800020e24100) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020e4dc40,ffff800020e240b0,ffff800020e24100) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020e24180) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e24180) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc4a00, count: -10 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffff800020d70ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __sanitizer_cov_trace_cmp4(b676e,b676d) at __sanitizer_cov_trace_cmp4+0x11 kd_curproc sys/dev/kcov.c:397 [inline] __sanitizer_cov_trace_cmp4(b676e,b676d) at __sanitizer_cov_trace_cmp4+0x11 trace_cmp sys/dev/kcov.c:104 [inline] __sanitizer_cov_trace_cmp4(b676e,b676d) at __sanitizer_cov_trace_cmp4+0x11 sys/dev/kcov.c:135 __mp_lock(ffffffff82925f10) at __mp_lock+0x139 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82925f10) at __mp_lock+0x139 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff82925f10,1) at __mp_acquire_count+0x51 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x392 sys/kern/sched_bsd.c:435 sleep_finish(ffff800020ed25b0,1) at sleep_finish+0x113 sys/kern/kern_synch.c:418 sleep_finish_all(ffff800020ed25b0,1) at sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline] sleep_finish_all(ffff800020ed25b0,1) at sleep_finish_all+0x32 sys/kern/kern_synch.c:393 tsleep(fffffd806f5a9028,11,ffffffff824702c2,0) at tsleep+0x1cc sys/kern/kern_synch.c:155 biowait(fffffd806f5a9028) at biowait+0xa6 sys/kern/vfs_bio.c:1262 bwrite(fffffd806f5a9028) at bwrite+0x215 sys/kern/vfs_bio.c:771 ffs_update(fffffd806869a558,1) at ffs_update+0x2c2 sys/ufs/ffs/ffs_inode.c:113 ufs_mkdir(ffff800020ed28f0) at ufs_mkdir+0x42e sys/ufs/ufs/ufs_vnops.c:1197 end trace frame: 0xffff800020ed2960, count: 0 ddb{1}> trace x86_ipi_db(ffff800020d70ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __sanitizer_cov_trace_cmp4(b676e,b676d) at __sanitizer_cov_trace_cmp4+0x11 kd_curproc sys/dev/kcov.c:397 [inline] __sanitizer_cov_trace_cmp4(b676e,b676d) at __sanitizer_cov_trace_cmp4+0x11 trace_cmp sys/dev/kcov.c:104 [inline] __sanitizer_cov_trace_cmp4(b676e,b676d) at __sanitizer_cov_trace_cmp4+0x11 sys/dev/kcov.c:135 __mp_lock(ffffffff82925f10) at __mp_lock+0x139 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82925f10) at __mp_lock+0x139 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff82925f10,1) at __mp_acquire_count+0x51 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x392 sys/kern/sched_bsd.c:435 sleep_finish(ffff800020ed25b0,1) at sleep_finish+0x113 sys/kern/kern_synch.c:418 sleep_finish_all(ffff800020ed25b0,1) at sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline] sleep_finish_all(ffff800020ed25b0,1) at sleep_finish_all+0x32 sys/kern/kern_synch.c:393 tsleep(fffffd806f5a9028,11,ffffffff824702c2,0) at tsleep+0x1cc sys/kern/kern_synch.c:155 biowait(fffffd806f5a9028) at biowait+0xa6 sys/kern/vfs_bio.c:1262 bwrite(fffffd806f5a9028) at bwrite+0x215 sys/kern/vfs_bio.c:771 ffs_update(fffffd806869a558,1) at ffs_update+0x2c2 sys/ufs/ffs/ffs_inode.c:113 ufs_mkdir(ffff800020ed28f0) at ufs_mkdir+0x42e sys/ufs/ufs/ufs_vnops.c:1197 VOP_MKDIR(fffffd8068710680,ffff800020ed2a50,ffff800020ed2aa0,ffff800020ed2980) at VOP_MKDIR+0xc6 sys/kern/vfs_vops.c:450 domkdirat(ffff800020ddc4e8,ffffff9c,7f7ffffcd5a0,1ff) at domkdirat+0x121 sys/kern/vfs_syscalls.c:3051 syscall(ffff800020ed2c20) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020ed2c20) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffcd610, count: -18